CN113278743A - Steering wheel leather resistant to heat shrinkage and preparation method thereof - Google Patents
Steering wheel leather resistant to heat shrinkage and preparation method thereof Download PDFInfo
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- CN113278743A CN113278743A CN202110538226.7A CN202110538226A CN113278743A CN 113278743 A CN113278743 A CN 113278743A CN 202110538226 A CN202110538226 A CN 202110538226A CN 113278743 A CN113278743 A CN 113278743A
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C1/00—Chemical treatment prior to tanning
- C14C1/04—Soaking
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/02—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or leather
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C1/00—Chemical treatment prior to tanning
- C14C1/08—Deliming; Bating; Pickling; Degreasing
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C13/00—Manufacture of special kinds or leather, e.g. vellum
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C15/00—Apparatus for chemical treatment or washing of hides, skins, or leather
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention discloses heat-shrinkage-resistant steering wheel leather which comprises a base cloth layer, a nylon net layer, a leather layer, a coating layer and a release paper layer, wherein the base cloth layer, the nylon net layer, the leather layer, the coating layer and the release paper layer are sequentially arranged from bottom to top, the nylon net layer is soaked in a glue layer, and the base cloth layer and the leather layer are bonded through the glue layer. The application discloses a preparation method of the steering wheel leather with heat shrinkage resistance, and a vegetable fatting agent is used for replacing a traditional compound tanning agent and the compound tanning agent is used for replacing the vegetable tanning agent in the process of preparing a leather blank. The heat-shrinkage-resistant steering wheel leather prepared by the invention starts from the preparation direction of the leather blank, the compounding process of the steering wheel leather and the like, improves the hardening resistance and the deformation resistance of the leather blank, improves the composite strength of the base cloth and the leather blank, and reduces the influence of the steering wheel leather in the long-term use process in a three-dimensional printing coating mode. Reduces the phenomena of cracking, delaminating and the like, and improves the heat-resistant shrinkage performance of the steering wheel leather.
Description
Technical Field
The invention belongs to the technical field of leather, and particularly relates to heat-shrinkage-resistant steering wheel leather and a preparation method thereof.
Background
The steering wheel of the automobile can be subjected to various environments, such as high temperature, high humidity, low temperature and low humidity, in the life cycle of use due to the particularity of the use condition. The chrome-tanned steering wheel leather generally has an excessively high elongation after long-term use, which causes the separation of the edge part of the leather from other parts. The research finds that the reason for the phenomenon is that the degelation is caused by the different elongation rates of the real leather and the base cloth after long-term repeated high and low temperature and humidity changes, and the phenomenon is accelerated by the influence of the friction force of the palm, sweat and the like for a long time. Further research shows that the complex fatting agent and the vegetable tanning agent used in the existing leather tanning production process can influence the elongation of the leather. The compound fatting agent mainly takes animal oil as main component, the animal oil also takes cow-foot oil and lard as main component, the molecular structural formula is triglyceride, wherein R1/R2/R3 is saturated alkane with 16-18 carbon atoms, the combination between the animal fatting agent and collagen molecules mainly takes Van der Waals force as main component, the combination force is weak, the compound fatting agent is easy to separate out from leather fiber in high-temperature and high-humidity environment, and the hardening and contraction of finished leather are brought. The plant tanning agent is extracted from natural plants, the raw materials of the natural plants are mainly extracts of natural barks or fruit pods, the natural plants have strong water absorption, the combination with leather collagen is mainly hydrogen bonds and physical adsorption, and the unstable combination of the plant tanning agent and the collagen under the conditions of high temperature and high humidity is damaged to lose the tanning effect, so that the dermis is hardened and contracted. Therefore, it is necessary to adjust the leather making process and the later compounding process according to the heat shrinkage resistance of the leather of the steering wheel of the automobile, so as to solve the problem that the edge part of the real leather is separated from other parts due to the overlarge elongation rate in long-term use.
Disclosure of Invention
In order to solve the technical problems, the invention adopts the technical scheme that: the steering wheel leather with heat shrinkage resistance comprises a base cloth layer, a nylon net layer, a leather germ layer, a coating layer and a release paper layer which are sequentially arranged from bottom to top, wherein the nylon net layer is soaked in a glue layer, and the base cloth layer and the leather germ layer are bonded through the glue layer.
Preferably, the surface of the coating layer has three-dimensional grains.
Preferably, the coating is a water-based polyurethane three-dimensional printing coating.
Preferably, in the above aspect, a surface of the leather layer adjacent to the base fabric layer is a rough surface.
Preferably, the nylon mesh layer is a 200-400-mesh nylon mesh, the leather layer is cowhide with the thickness of 1.0-1.2mm, and the waterborne polyurethane three-dimensional printing coating has criss-cross grains with the depth of 0.2-0.3 mm.
The preparation method of the steering wheel leather with heat shrinkage resistance comprises the following steps:
step one, pre-soaking the leather material, mainly soaking the leather material, wrapping ash, removing meat and slicing the leather material to form a primary blank material with the thickness of 1.4-1.6 mm;
step two, softening the initial blank material, pickling, pre-tanning, squeezing water and uniformly shaving to form a middle blank;
step three, forming a rough surface on one surface of the middle blank by using a scraper rod;
filling, dyeing, greasing, stretching, wringing, drying and finishing to form a leather blank;
coating glue on the rough surface of the leather blank, then sequentially covering a nylon net and base cloth on the glue, and compounding the leather blank, the nylon net and the base cloth by using a compression roller;
step six, carving lines on release paper, preparing aqueous polyurethane slurry, and coating the aqueous polyurethane slurry on the release paper by using a printing roller;
step seven, covering the release paper on the leather blank and pressing the leather blank tightly, wherein the aqueous polyurethane slurry is positioned between the release paper and the leather blank;
and step eight, drying to obtain the steering wheel leather with heat shrinkage resistance.
Preferably, the filling and dyeing process in step four includes: adding a certain amount of water, a plant fatting agent and acrylic acid into the rotary drum in sequence, rotating the rotary drum for 30 minutes, then adding a certain amount of dye, tannin extract, synthetic tanning agent, plant fatting agent and amino resin tanning agent into the rotary drum in sequence, rotating the rotary drum for 30 minutes, then adding a certain amount of tannin extract, synthetic tanning agent, plant fatting agent and amino resin tanning agent into the rotary drum in sequence, rotating the rotary drum for 30 minutes, continuing to add a certain amount of dye, synthetic tanning agent and sodium formate into the rotary drum in sequence, rotating the rotary drum for 60 minutes, adding a certain amount of acrylic acid into the rotary drum, rotating the rotary drum for 30 minutes, finally adding a certain amount of protein filler into the rotary drum, and rotating the rotary drum for 15 minutes to finish the filling and dyeing process.
Preferably, in the fourth step, the step of adding fat includes: and (3) sequentially adding a certain amount of water, a mildew preventive, a plant fatting agent, a dispersing agent and a plant fatting agent into the rotary drum, rotating the rotary drum for 30 minutes, then sequentially adding a certain amount of acrylic acid and a dispersing agent, and rotating the rotary drum for 30 minutes to finish the fatting process.
Preferably, in the above technical solution, the vegetable fat-liquoring agent includes lecithin, phosphate radical, quaternary ammonium salt, and unsaturated fatty acid.
The invention has the beneficial effects that: the heat-shrinkage-resistant steering wheel leather prepared by the invention starts from the preparation direction of the leather blank, the compounding process of the steering wheel leather and the like, improves the hardening resistance and the deformation resistance of the leather blank, improves the composite strength of the base cloth and the leather blank, and reduces the influence of the steering wheel leather in the long-term use process in a three-dimensional printing coating mode. Reduces the phenomena of cracking, delaminating and the like, and improves the heat-resistant shrinkage performance of the steering wheel leather.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figure 1, the heat-shrinkage-resistant steering wheel leather comprises a base cloth layer 1, a nylon mesh layer 2, a leather blank layer 3, a coating layer 4 and a release paper layer 5 which are sequentially arranged from bottom to top, wherein the nylon mesh layer 2 is soaked in a glue layer 6, and the base cloth layer 1 and the leather blank layer 3 are bonded through the glue layer 6. The surface of the coating 4 has three-dimensional grains. The coating 4 is a water-based polyurethane three-dimensional printing coating. The surface of the leather layer 3 close to the base cloth layer 1 is a rough surface. The nylon net layer is a 200-400-mesh nylon net, the leather layer is cowhide with the thickness of 1.0-1.2mm, and the waterborne polyurethane three-dimensional printing coating has criss-cross grains with the depth of 0.2-0.3 mm. The steering wheel leather is formed by compounding and then processed into the steering wheel, and the release paper layer 5 is torn off when the steering wheel is used. The leather fiber is of a porous structure and is easy to absorb water. After the leather is tanned, a coating on the surface of the leather is damaged, and the steering wheel leather subjected to high-temperature circulation is exposed in a high-temperature and high-humidity environment with the temperature of 65 ℃ and the humidity of 95%, so that the leather blank fiber has extremely high water absorption and is more easily subjected to shrinkage deformation in the high-temperature and high-humidity environment. Therefore, the coating 4 can play a certain role in preventing water from contacting the dermoid, and meanwhile, the surface of the coating 4 is provided with three-dimensional grains, so that the friction force and the hand feeling of the steering wheel can be improved, the specific surface area of the steering wheel can be improved, and sweat and the like can be evaporated quickly. Sweat and the like enter the inside of the steering wheel leather through the sewing gap and the like to influence the deformation of the steering wheel leather.
Meanwhile, the nylon net layer 2 with good heat resistance is compounded with the rough surface of the leather layer 3, the composite strength of the leather layer 3 and the base cloth layer 1 is improved through the permeation and bonding effect of the glue layer 6, and the cracking condition caused by inconsistent heating extension degree is reduced.
The preparation method of the steering wheel leather with heat shrinkage resistance comprises the following steps:
step one, pre-soaking the leather material, mainly soaking the leather material, wrapping ash, removing meat and slicing the leather material to form a primary blank material with the thickness of 1.4-1.6 mm;
step two, softening the initial blank material, pickling, pre-tanning, squeezing water and uniformly shaving to form a middle blank;
step three, forming a rough surface on one surface of the middle blank by using a scraper rod;
filling, dyeing, greasing, stretching, wringing, drying and finishing to form a leather blank;
coating glue on the rough surface of the leather blank, then sequentially covering a nylon net and base cloth on the glue, and compounding the leather blank, the nylon net and the base cloth by using a compression roller;
step six, carving lines on release paper, preparing aqueous polyurethane slurry, and coating the aqueous polyurethane slurry on the release paper by using a printing roller;
step seven, covering the release paper on the leather blank and pressing the leather blank tightly, wherein the aqueous polyurethane slurry is positioned between the release paper and the leather blank;
and step eight, drying to obtain the steering wheel leather with heat shrinkage resistance.
Further, the filling and dyeing process in the fourth step comprises the following steps: adding a certain amount of water, a plant fatting agent and acrylic acid into the rotary drum in sequence, rotating the rotary drum for 30 minutes, then adding a certain amount of dye, tannin extract, synthetic tanning agent, plant fatting agent and amino resin tanning agent into the rotary drum in sequence, rotating the rotary drum for 30 minutes, then adding a certain amount of tannin extract, synthetic tanning agent, plant fatting agent and amino resin tanning agent into the rotary drum in sequence, rotating the rotary drum for 30 minutes, continuing to add a certain amount of dye, synthetic tanning agent and sodium formate into the rotary drum in sequence, rotating the rotary drum for 60 minutes, adding a certain amount of acrylic acid into the rotary drum, rotating the rotary drum for 30 minutes, finally adding a certain amount of protein filler into the rotary drum, and rotating the rotary drum for 15 minutes to finish the filling and dyeing process.
Further, the step four of the fatliquoring process comprises the following steps: and (3) sequentially adding a certain amount of water, a mildew preventive, a plant fatting agent, a dispersing agent and a plant fatting agent into the rotary drum, rotating the rotary drum for 30 minutes, then sequentially adding a certain amount of acrylic acid and a dispersing agent, and rotating the rotary drum for 30 minutes to finish the fatting process.
Further, the plant fat-liquoring agent comprises lecithin, phosphate radical, quaternary ammonium salt and unsaturated fatty acid. The vegetable fatting agent comprises the following molecular formula:
the vegetable fatting agent has better contribution to the dimensional stability than the compound fatting agent. The used vegetable oil takes the lecithin as a main material, wherein phosphate radical can form an ionic bond with amino of collagen amino acid, quaternary ammonium salt can form an ionic bond with carboxyl of the collagen amino acid or acrylic acid polymer, more double bonds of unsaturated fatty acid can form the combination of hydrogen bonds or polar bonds with collagen fibers, more functional groups of the vegetable fatting agent have strong binding force with the leather fibers, and the vegetable fatting agent is beneficial to the retention of the oil in the leather collagen under the conditions of high temperature, high temperature and high humidity, thereby avoiding the hardening and shrinkage of a leather embryo.
The compound fat-liquoring agent mainly takes animal oil as a main component, and the animal oil also takes ungula oil and lard oil as main components, and comprises triglyceride, and the molecular formula is as follows:
wherein R1/R2/R3 is mainly saturated alkane with 16-18 carbon atoms, the bonding between the animal fatting agent and collagen molecules is mainly Van der Waals force, the bonding force is weak, the animal fatting agent is easy to separate out from leather fibers in a high-temperature and high-humidity environment, and the hardening and shrinkage of the finished leather are brought. Therefore, aiming at the special use environment of the steering wheel leather, the plant fatting agent is used for replacing the traditional compound tanning agent in the process of preparing the leather blank, and the deformation of the leather blank is reduced.
The plant tanning agent is extracted from natural plants, the raw materials of the natural plants are mainly extracts of natural barks or fruit pods, the natural plants have strong water absorption, the combination with leather collagen is mainly hydrogen bonds and physical adsorption, and the unstable combination of the plant tanning agent and the collagen under the conditions of high temperature and high humidity is damaged, the tanning effect is lost, and the plant tanning agent is hardened and shrunk. Therefore, aiming at the special use environment of the steering wheel leather, the composite tanning agent is used for replacing a plant tanning agent in the process of preparing the leather embryo, so that the deformation of the leather embryo is reduced.
It should be noted that the technical features of the steering wheel, the pressure roller, etc. related to the present patent application should be regarded as the prior art, and the specific structure, the operation principle, the control mode and the spatial arrangement mode of the technical features may be selected conventionally in the field, and should not be regarded as the invention point of the present patent, and the present patent is not further specifically described in detail.
Having described preferred embodiments of the present invention in detail, it is to be understood that modifications and variations may be resorted to without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The heat-shrinkage-resistant steering wheel leather is characterized by comprising a base cloth layer, a nylon net layer, a leather germ layer, a coating layer and a release paper layer which are sequentially arranged from bottom to top, wherein the nylon net layer is soaked in a glue layer, and the base cloth layer and the leather germ layer are bonded through the glue layer.
2. The heat shrinkable steering wheel leather of claim 1, wherein the surface of the coating layer has a three-dimensional texture.
3. The steering wheel leather resistant to thermal shrinkage of claim 2, wherein the coating is a water-based polyurethane three-dimensional printed coating.
4. The heat-shrinkable steering wheel leather according to claim 3, wherein a surface of the leather layer adjacent to the base layer is a rough surface.
5. The steering wheel leather resistant to heat shrinkage according to claim 4, wherein the nylon mesh layer is a 200-400 mesh nylon mesh, the leather skin layer is cowhide with a thickness of 1.0-1.2mm, and the three-dimensional printed coating of waterborne polyurethane has criss-cross grains with a depth of 0.2-0.3 mm.
6. The method for preparing a steering wheel leather resistant to heat shrinkage according to any one of claims 1 to 5, comprising the steps of:
step one, pre-soaking the leather material, mainly soaking the leather material, wrapping ash, removing meat and slicing the leather material to form a primary blank material with the thickness of 1.4-1.6 mm;
step two, softening the initial blank material, pickling, pre-tanning, squeezing water and uniformly shaving to form a middle blank;
step three, forming a rough surface on one surface of the middle blank by using a scraper rod;
filling, dyeing, greasing, stretching, wringing, drying and finishing to form a leather blank;
coating glue on the rough surface of the leather blank, then sequentially covering a nylon net and base cloth on the glue, and compounding the leather blank, the nylon net and the base cloth by using a compression roller;
step six, carving lines on release paper, preparing aqueous polyurethane slurry, and coating the aqueous polyurethane slurry on the release paper by using a printing roller;
step seven, covering the release paper on the leather blank and pressing the leather blank tightly, wherein the aqueous polyurethane slurry is positioned between the release paper and the leather blank;
and step eight, drying to obtain the steering wheel leather with heat shrinkage resistance.
7. The method for preparing heat shrinkage resistant steering wheel leather according to claim 6, wherein the step four filling dyeing process comprises: adding a certain amount of water, a plant fatting agent and acrylic acid into the rotary drum in sequence, rotating the rotary drum for 30 minutes, then adding a certain amount of dye, tannin extract, synthetic tanning agent, plant fatting agent and amino resin tanning agent into the rotary drum in sequence, rotating the rotary drum for 30 minutes, then adding a certain amount of tannin extract, synthetic tanning agent, plant fatting agent and amino resin tanning agent into the rotary drum in sequence, rotating the rotary drum for 30 minutes, continuing to add a certain amount of dye, synthetic tanning agent and sodium formate into the rotary drum in sequence, rotating the rotary drum for 60 minutes, adding a certain amount of acrylic acid into the rotary drum, rotating the rotary drum for 30 minutes, finally adding a certain amount of protein filler into the rotary drum, and rotating the rotary drum for 15 minutes to finish the filling and dyeing process.
8. The method for preparing heat shrinkage resistant steering wheel leather according to claim 7, wherein the fatliquoring process in the fourth step includes: and (3) sequentially adding a certain amount of water, a mildew preventive, a plant fatting agent, a dispersing agent and a plant fatting agent into the rotary drum, rotating the rotary drum for 30 minutes, then sequentially adding a certain amount of acrylic acid and a dispersing agent, and rotating the rotary drum for 30 minutes to finish the fatting process.
9. The method of manufacturing steering wheel leather resistant to thermal shrinkage according to claim 8, wherein the vegetable fatliquoring agent comprises lecithin, phosphate, quaternary ammonium salt, and unsaturated fatty acid.
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| CN202110538226.7A CN113278743B (en) | 2021-05-18 | 2021-05-18 | Heat-shrinkage-resistant steering wheel leather and preparation method thereof |
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| CN202110538226.7A CN113278743B (en) | 2021-05-18 | 2021-05-18 | Heat-shrinkage-resistant steering wheel leather and preparation method thereof |
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| CN113278743B CN113278743B (en) | 2023-09-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114407450A (en) * | 2021-12-08 | 2022-04-29 | 革乐美时尚有限公司 | Composite leather and preparation method thereof |
| CN114574636A (en) * | 2022-02-25 | 2022-06-03 | 中国皮革制鞋研究院有限公司 | Ecological colorful transparent soft leather and processing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117648A (en) * | 2007-09-04 | 2008-02-06 | 广州市德威皮革制品有限公司 | Novel process for leather retanning |
| CN104831545A (en) * | 2015-02-13 | 2015-08-12 | 海宁中驰皮革有限公司 | Steering wheel leather fabric and producing method thereof |
| CN207435470U (en) * | 2017-11-02 | 2018-06-01 | 明新旭腾新材料股份有限公司 | A kind of environment-friendly type transfer coating automotive leather |
| CN210161700U (en) * | 2019-01-23 | 2020-03-20 | 东莞超霖皮革有限公司 | Acid and alkali resistant multi-layer cowhide |
| CN111020071A (en) * | 2019-12-27 | 2020-04-17 | 浙江铁凝汽车用品有限公司 | Steering wheel curtain coating composite leather and preparation method thereof |
-
2021
- 2021-05-18 CN CN202110538226.7A patent/CN113278743B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117648A (en) * | 2007-09-04 | 2008-02-06 | 广州市德威皮革制品有限公司 | Novel process for leather retanning |
| CN104831545A (en) * | 2015-02-13 | 2015-08-12 | 海宁中驰皮革有限公司 | Steering wheel leather fabric and producing method thereof |
| CN207435470U (en) * | 2017-11-02 | 2018-06-01 | 明新旭腾新材料股份有限公司 | A kind of environment-friendly type transfer coating automotive leather |
| CN210161700U (en) * | 2019-01-23 | 2020-03-20 | 东莞超霖皮革有限公司 | Acid and alkali resistant multi-layer cowhide |
| CN111020071A (en) * | 2019-12-27 | 2020-04-17 | 浙江铁凝汽车用品有限公司 | Steering wheel curtain coating composite leather and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114407450A (en) * | 2021-12-08 | 2022-04-29 | 革乐美时尚有限公司 | Composite leather and preparation method thereof |
| CN114574636A (en) * | 2022-02-25 | 2022-06-03 | 中国皮革制鞋研究院有限公司 | Ecological colorful transparent soft leather and processing method thereof |
| CN114574636B (en) * | 2022-02-25 | 2023-08-29 | 中国皮革制鞋研究院有限公司 | Ecological color transparent soft leather and processing method thereof |
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| CN113278743B (en) | 2023-09-19 |
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